Description
Radio and onboard computer display for PEUGEOT 407. Some functions may need to be activated with diagnostic equipment.
Description
High-quality replacement display for the factory radio and onboard computer fitted to Peugeot 407 vehicles. This display is compatible with units referenced by product codes 9821852480 and 659349 and is intended for professional garages and experienced DIY enthusiasts who perform dashboard and infotainment repairs. The part restores clear readout of radio, trip computer and vehicle information, and can resolve common display faults such as dim backlight, missing segments or intermittent output.
Technical Information
- Manufacturer: Stellantis / Peugeot
- Model: Peugeot 407
- Product Codes: 9821852480, 659349
- Other Numbers: Commonly referenced under OEM codes 9821852480 | 659349
Compatibility And Notes
This display is designed for Peugeot 407 vehicles equipped with the factory radio/display cluster. Customers and technicians frequently search by the product codes 9821852480 or 659349 — include these numbers when checking fitment. Some features or menus on the display may require activation using a diagnostic tool (e.g. DiagBox/PP2000/Lexia).
Installation Recommendations
Before beginning work, always disconnect the negative battery terminal to avoid short circuits and protect electronic modules. Typical replacement steps:
- Remove surrounding trim panels with plastic trim tools to avoid damage to clips.
- Unscrew and slide out the radio/head unit to access the display connector.
- Carefully disconnect wiring harnesses and any ribbon cables; avoid pulling on wires directly.
- Swap the display module and reconnect all connectors, ensuring secure seating and no bent pins.
- Reconnect the battery and perform a function test (radio, trip computer readout, backlight) before reassembling trim.
Recommended tools: trim removal kit, Torx and Phillips drivers, small socket set, electrical contact cleaner. Observe ESD precautions and avoid touching PCB components. If functions need activation, use a PSA-compatible diagnostic tool.
Why This Part Fails Most Often
Failures in Peugeot 407 radio/display modules are typically caused by ageing and thermal stress that degrade backlight elements or solder joints, corrosion of connector pins from moisture ingress, or damaged ribbon cables from repeated removal. Firmware or configuration issues can also cause display anomalies; in such cases diagnostic activation or reprogramming may be required. Regular symptoms include dim or flickering backlight, missing segments, lines on the display, or complete loss of image.
Practical Tips For Technicians
- Test the replacement display on the bench (with correct power and ground) before full installation when possible.
- Inspect connectors for corrosion and repair wiring looms if needed to prevent repeat failures.
- Keep the original units and note any calibration or software versions—some features may need enabling via diagnostic software.
If you are a professional mechanic or an experienced DIYer looking for a reliable radio and onboard computer display for Peugeot 407, this part (9821852480 / 659349) offers a precise fit and restores full functionality when installed and configured correctly.
